linux - Apache gzip configuration

I have apache 2.2.11 installed on my server and I have been trying to decrease the load time of my website pages based on the advice from the yslow firefox plugin.

I have configured gzip and etag and some of its other suggestions fine but I have noticed in the header for my css files etag is being appended with the text gzip.

Does anyone know why and how to get round this?

Header from my server
Date    Sun, 07 Jun 2009 10:40:57 GMT
Server  Apache/2.2.11 (Fedora)
Last-Modified   Sun, 31 May 2009 15:06:38 GMT
Etag    "3b4-46b36a802bb80"-gzip
Accept-Ranges   bytes
Cache-Control   max-age=2592000

Expires Tue, 07 Jul 2009 10:40:57 GMT
Vary    Accept-Encoding
Content-Encoding    gzip
Content-Length  530
Connection  close
Content-Type    text/css

The same code on my hosted package uses an older version of apache and doesn't have the same problem. Could this just be an apache bug?

Header from my hosting package

Date    Sun, 07 Jun 2009 10:48:26 GMT
Server  Apache/2.0.63 (FreeBSD) mod_python/3.3.1 Python/2.5.1 PHP/5.2.6 with Suhosin-Patch mod_fastcgi/2.4.6 mod_ssl/2.0.63 OpenSSL/0.9.7e-p1 DAV/2 mod_perl/2.0.4 Perl/v5.8.8
Last-Modified   Sat, 21 Feb 2009 13:54:52 GMT
Etag    "3b4-1d104300"
Accept-Ranges   bytes
Cache-Control   max-age=2592000
Expires Tue, 07 Jul 2009 10:48:26 GMT
Vary    Accept-Encoding
Content-Encoding    gzip
Content-Length  530

Connection  close
Content-Type    text/css

Answer

Here's an ideal .htaccess that both compresses and sets sutiable expire headers.

# Insert filter
SetOutputFilter DEFLATE

# Netscape 4.x has some problems...

BrowserMatch ^Mozilla/4 gzip-only-text/html

# Netscape 4.06-4.08 have some more problems
BrowserMatch ^Mozilla/4\.0[678] no-gzip

# MSIE masquerades as Netscape, but it is fine
# BrowserMatch \bMSIE !no-gzip !gzip-only-text/html

# Make sure proxies don't deliver the wrong content
Header append Vary User-Agent env=!dont-vary



  ExpiresActive On
  ExpiresDefault "access plus 1 seconds"
  ExpiresByType image/x-icon "access plus 2592000 seconds"
  ExpiresByType image/jpeg "access plus 2592000 seconds"
  ExpiresByType image/png "access plus 2592000 seconds"
  ExpiresByType image/gif "access plus 2592000 seconds"
  ExpiresByType application/x-shockwave-flash "access plus 2592000 seconds"
  ExpiresByType text/css "access plus 604800 seconds"

  ExpiresByType text/javascript "access plus 216000 seconds"
  ExpiresByType application/x-javascript "access plus 216000 seconds"
  ExpiresByType text/html "access plus 600 seconds"
  ExpiresByType application/xhtml+xml "access plus 600 seconds"



  
    Header set Cache-Control "max-age=2592000, public"
  

  
    Header set Cache-Control "max-age=604800, public"
  
  
    Header set Cache-Control "max-age=216000, private"
  
  
    Header set Cache-Control "max-age=600, private, must-revalidate"
  




  Header unset ETag

FileETag None


  Header unset Last-Modified

The following article covers what it does and also talks about compression:

http://www.samaxes.com/2009/01/06/more-on-compressing-and-caching-your-site-with-htaccess/

Hope that helps.